If the stomach is not functioning well or the stomach is cut up, the tube can be put into the jejunum through the nose, which is the second route; another route is to make a fistula above the stomach, which is not through the tube, or the stoma of the intestine, or the stoma of the jejunum. This depends on how long it takes to put the tube, for example, the patient itself is a malignant tumor of the esophagus, there is an obstruction, the tube can not be put in, or the patient is already comatose, may need to give the gastric tube for more than 4-6 weeks, this time we have to give him a gastrostomy or jejunostomy. These are the three routes of support, one is through the mouth, one is through the tube, and the other is through the gastrostomy stoma. Among these three routes, the safest one is actually the gastrostomy and the jejunostomy. If it is given in through the mouth, through the nasogastric tube or through the nasogastric tube, the most common and most serious complication is aspiration, which will eat into the stomach inside the things run into the trachea, into the lungs, resulting in aspiration pneumonia.